6541646532 has 24 divisors (see below), whose sum is σ = 15366288000. Its totient is φ = 2165913696.

The previous prime is 6541646497. The next prime is 6541646539. The reversal of 6541646532 is 2356461456.

It is not an unprimeable number, because it can be changed into a prime (6541646539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1827532 + ... + 1831107.

It is an arithmetic number, because the mean of its divisors is an integer number (640262000).

Almost surely, 2^6541646532 is an apocalyptic number.

It is an amenable number.

6541646532 is an abundant number, since it is smaller than the sum of its proper divisors (8824641468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6541646532 is a wasteful number, since it uses less digits than its factorization.

6541646532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3658795 (or 3658793 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 6541646532 is about 80880.4459186521. The cubic root of 6541646532 is about 1870.2328946306.

The spelling of 6541646532 in words is "six billion, five hundred forty-one million, six hundred forty-six thousand, five hundred thirty-two".